Review the Prerequisites

Review the following prerequisites before you restore the Oracle database:

You have a valid recovery point and the encryption password, if any, for restore.
Backup sessions must be accessed locally on the target node. If the session location is on the local volume of the target node, use the exact directory path as the session location. If the session location is on a network share, first mount the network share to a local mount point and then use the mount point path as the session location.
Target volumes that you want to restore cannot be a root volume and must be un-mounted, using the umount command.
Example: umount /dev/sda1
The target volume must be equal or larger than the source volume.
Oracle database stores all the database-related files (data files, redo logs, archive logs, pfile, spfile, backups) on ext2, ext3, ext4, and ReiserFS. The database does not recognize Oracle Cluster File System (OCFS/OCFS2), Raw disks, or Automatic Storage Management (ASM) file systems.
Review the Compatibility Matrix which provides the supported operating systems, databases, and browsers.